ERP integration is one of the most requested — and most misunderstood — projects in eCommerce. When done well, it eliminates manual data entry, keeps inventory accurate, and automates order processing. When done poorly, it creates a maintenance nightmare that ties your team in knots for years.
What Does an ERP Integration Actually Do?
At its core, an ERP integration keeps data synchronized between your online store and your business management system. This typically includes: product data and pricing, inventory levels, customer records, orders and fulfilment status, and invoices or credit notes.
Sync Frequency: Real-Time vs. Scheduled
Not all data needs to move in real-time. Inventory and pricing are usually high-priority (near real-time or every few minutes). Orders should flow to the ERP within minutes of placement. Product catalogue updates can often run nightly. Choosing the right frequency for each data type reduces API load and complexity.
Common Mistakes to Avoid
The most expensive mistake is building a direct point-to-point connection without a middleware layer. If either system changes its API (which SAP, Shopware, and most ERPs do regularly), you rebuild from scratch. A middleware or integration platform (iPaaS) insulates both sides from changes.
The second most common mistake is ignoring error handling. What happens when an order cannot be pushed to the ERP because a product code does not exist? You need alerting, retry logic, and a fallback queue — not a silent failure.
Choosing the Right Integration Approach
For standard ERP systems (SAP Business One, Sage, Microsoft Dynamics), well-tested connectors already exist. For custom or legacy ERPs, a REST or SOAP API bridge with a message queue (RabbitMQ, Redis) is often the most robust pattern. FFP Technologies has built both — the right choice depends on your ERP's capabilities and your team's capacity to maintain it.
Planning Your Integration Project
Start with a data mapping workshop: document every field in both systems, how it maps, and what transformation rules apply. This single document becomes the specification for development, testing, and future maintenance. Do not skip it.
Ready to plan your ERP integration? Contact FFP Technologies for a free technical review.